package Thread;

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

public class Bounce {

public static void main(String[] args) {

// TODO Auto-generated method stub

EventQueue.invokeLater(new Runnable(){

public void run(){

JFrame frame=new BounceFrame();

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);

}

});

System.out.print("½áÊø");

System.out.print("½áÊø");

}

}

class BounceFrame extends JFrame{

private BallComponent comp;

public static final int STEPS=10000;

public static final int DELAY=3;

public BounceFrame(){

setTitle("Bounce");

comp=new BallComponent();

add(comp,BorderLayout.CENTER);

JPanel buttonPanel=new JPanel();

addButton(buttonPanel,"Start",new ActionListener(){

public void actionPerformed(ActionEvent event){

addBall();

}

});

addButton(buttonPanel,"Close",new ActionListener(){

public void actionPerformed(ActionEvent event){

System.exit(0);

}

});

add(buttonPanel,BorderLayout.SOUTH);

pack();

}

public void addButton(Container c,String title,ActionListener listener){

JButton button=new JButton(title);

c.add(button);

button.addActionListener(listener);

}

public void addBall(){

try{

Ball ball=new Ball();

comp.add(ball);

for(int i=1;i<=STEPS;i++){

ball.move(comp.getBounds());

comp.paint(comp.getGraphics());

Thread.sleep(DELAY);

}

}catch(InterruptedException e){

}

}

}